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Operation Manual – MSTP
Quidway S5600 Series Ethernet Switches-Release 1510
Chapter 1 MSTP Configuration
Huawei Technologies Proprietary
1-13
Caution:
z
Once you specify a switch as the root bridge or a secondary root bridge by using the
stp root primary
or
stp root secondary
command, the bridge priority of the switch
is not configurable.
z
During the selection of the root bridge, if multiple switches have the same bridge
priority, the one with the least MAC address becomes the root bridge candidate.
II. Configuration example
# Set the bridge priority of the current switch to 4,096 in spanning tree instance 1.
<Quidway> system-view
[Quidway] stp instance 1 priority 4096
1.2.5 MSTP Packet Format Configuration
You can set the MSTP packet format to the following three formats for a port:
auto
,
legacy
, and
dot1s
(802.1s).
z
With the MSTP packet format set to
auto
, the port automatically determines the
format of the packets to be transmitted according to that of the received MSTP
packets. If the format of the received packets changes repeatedly, MSTP will shut
down the corresponding port to prevent network storm. A port shut down in this
way can only be enabled again by the network administrator.
z
With the MSTP packet format set to
legacy
, the port only processes and
transmits MSTP packets in
legacy
format. If packets in
dot1s
format are received,
the corresponding ports are set as discarding ports to prevent network storm.
z
With the MSTP packet format set to
dot1s
, the port only processes and transmits
MSTP packets in
dot1s
format. If packets in
legacy
format are received, the
corresponding ports are set as discarding ports to prevent network storm.
z
All the ports in an aggregation group use the same MSTP packet format.
I. Configuration Procedure
Table 1-7
Configure MSTP packet format for a port
Operation
Command
Description
Enter system view
system-view
—
Enter Ethernet port
view
interface interface-type
interface-number
—